8 4 



ENGINEERING ON THE FARM 



Tally pin: A steel pin 12 to 14 inches long, used for marking the 

 end of a chain length in land surveys. Eleven pins form a set. 



Tally: Ten units of measurement. In land surveys ten lengths of 

 the surveyor's chain, equivalent to 660 feet. A complete set 

 of pins is required to mark a tally, the pins being changed from 

 the rear to the front chainman at the end of each tally. 



Land surveys are divided into two classes: (1) original 

 surveys which establish the lines, boundaries, and monu- 

 ments in unsurveyed territory; (2) resurveys, made for the 

 purpose of relocating the lines, boundaries, and monuments 

 which have been established by a previous survey. 



Fig. 98. French claims laid out by metes and bounds to give each landowner 

 river frontage. The numbered squares are United States sections. 



